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Safety ® Assembly ® Operation oTips & Techniques ® Maintenance oTroubleshooting ® Parts Lists oWarranty Gas Lawn Edger - Model Series 520 & 550 READ SAFETY RULES AND mNSTFIUCTmONS CAREFULLY BEFORE OPEFIATmON Warning : Thisunit is equippedwithan internalcombustionengineandshouldnot beusedon or nearany unimprovedforest - coveredb , rush = coveredor grass = coveredlandunlessthe engine'sexhaustsystemis equippedwitha sparkarrestermeetingapplicablelocalorstate laws ( if any ) , If a sparkarresteris used , it shouldbemaintainedineffectiveworkingorderby the operator , Inthe Stateof Californiathe aboveis requiredbylaw ( Section4442of the CaliforniaPublicResourcesCode ) , Otherstatesmayhavesimilarlaws , Federallawsapplyonfederallands , A sparkarrester for the muffleris availablethroughyournearestengineauthorizedservicedealeror contactthe servicedepartment , RO , Box361131Cleveland , Ohio44136 = 0019 , PRINTEDIN U , S , A MTD LLC , RO . BOX 361131 CLEVELAND , OHIO 44136 - 0019 FORMNO , 769 = 00527F 10 / 04 / 2004
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This Operator's Manua _ is an important part of your new gas lawn edger , mtwH _ he _ p you assemble , prepare and maintain the unit for best performance . P _ ease read and understand what it says . Table of Contents 1 . Safety Labels . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 6 . Making Adjustments . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 - 10 2 . Safe Operation Practices . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 - 5 7 . Maintaining & Servicing . . . . . . . . . . . . . . . . . . . . . . . . . . 11 - 12 3 . Setup & Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 8 . Off - Season Storage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12 4 . KnowYour Edger . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 9 . Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13 10 . Parts List . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14 - 15 5 . Operating Your Edger . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 11 . Warranty . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16 Finding and Recording iVlodei Number BEFOREYOU STARTASSEMBLINGYOUR NEW EQUIP = F MENT , please locate the model plateon the equipment and copy the information to the sample model plate provided to the righL Youcan locate the model plate by standingat the Modem Number Serial Number operating position and lookingdown at the rearof the gas lawn edger . This information will be necessary to use the manufacturer'sweb site and / or help from the Customer Sup = MTD LLC port Departmentor an authorizedservice dealer . P . O . BOX 361131 CLEVELAND , OH 44136 330 - 220 - 4683 800 - 800 - 731 O www , mtdproducts , com % . J Customer Support P _ ease do NOTretum the unit to the retai _ er from which it was purchased , without first contacting Customer Support . if you havedifficulty assembling this product or haveany questions regardingthe controls , operation or maintenanceof this unit , you can seek helpfrom the experts . Choose from the Click here to search our knowledge base . Search by product , keyword , or phrase . options below : 1 . Visit mtdproducts . com for many usefulsuggestions . Click on Customer Support button and you will get the four Login to check the status of your questions , modify options reproduced in this sample to the right . Click on the your inquiries , or update your personal profile . appropriate button and help is immediately available . 2 . Phone a Customer Support Representative at 1 ( 800 ) 800 = 7310 . Need local assistance ? Click here to find authorized service centers in your area . 3 . The engine manufacturer is responsiblefor all engine ° related issues with regards to performance , power = rating , specifications , warranty and service . Please refer to the engine manufacturer'sOwner's / Operator's Manual , packed Need a manual and / or parts list ? Download separatelywith your unit , for more literature from recent model years . 2
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r Labels Pleasetakea momentto reviewyoursafetylabels . _ _ 4 = i = 1 " _ V : V , Vl ± _ " - - - _ . [ o ] IIV ± _ IIII _ [ _ L : ] lr ± Ym ] - i ii _ ii iii 3
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manual . As with any type of power equipment , carelessness or error on the part of the operator can result in serious injury . This machineis capable of amputating hands and feet and throwing objects . , Failureto observe the following safetyinstructions could result in serious injury or death . 12 . Ifgasolineis spilled , wipeitofftheengineandequipmentM . ove Children unitto anotherarea . Wait5 minutesbeforestartingengine . Tragicaccidentscan occurifoperatorisnotalert to presence 13 . Neverstorethe machineorfuel containernearanopen of children . Childrenare oftenattractedto powerequipment flame , spark orpilot light as ona water heater , space heater , suchaslawnedgers . Theydonot understandthe dangers . furnace , clothesdryeror othergasappliances . Neverassumethatchildrenwill remainwhereyoulast saw them . 14 . Toreducefire hazard , keeplawnedgerfree of grass , 1 . Keepchildrenoutof the mowingareaandunderwatchful leaves , or otherdebris build - up • Cleanupoilor fuelspillage careof a responsibleadultotherthanthe operator . and removeanyfuelsoakeddebris • 2 . Be alert andturn lawnedgeroff ifa childentersthearea . 15 . Allowa lawnedgerto cool at least5 minutesbeforestoring . 3 . Beforeand whilemovingbackwards , look behindanddown General Operation : forsmallchildren . 1 . Readthis operator'smanual carefullyin its entiretybefore 4 . Useextremecare whenapproachingblindcorners , doorways , shrubs , trees , orotherobjectsthat mayobscure attemptingto assemblethis machine • Read , understand , yourvisionof a childwho mayrun intothelawnedger • andfollow allinstructionsonthe machineandin the 5 . Keepchildrenawayfromhot orrunningengines . Theycan manual ( s ) beforeoperation . Be completelyfamiliarwith sufferburnsfroma hotmuffler . thecontrolsandthe properuseof this machinebefore 6 . Neverallowchildrenunder14yearsoldto operatean operatingit . Keepthis manualin a safeplaceforfuture and edger • Children14years oldand overshouldreadand regularreferenceandfor orderingreplacementparts • understandoperationinstructionasndsafetyrulesinthis 2 . Thismachineis a precisionpieceof powerequipment , not a manualandshouldbetrainedandsupervisedbya parent . plaything • Therefore , exerciseextremecaution at alltimes . endangerthe personal Yourunithas beendesignedto performonejob : to mow Operation grass • Donotuse itfor anyotherpurpose . safetyand / or property Safe Handling Of Gasoline : 3 . Neverallowchildrenunder 14yearsold to operatethis machine • Children 14yearsold and overshould readand 1 . Toavoidpersonalinjuryor propertydamageuse understandthe instructionsinthis manualandshould extremecare in handlinggasoline • Gasolineis extremely flammableandthevaporsare explosive . Seriouspersonal betrainedand supervisedbya parent . Only responsible injurycanoccur whengasolineis spilled onyourselfor individualswho arefamiliar withthese rulesof safe opera - yourclotheswhichcan ignite . tionshouldbeallowedto usethis machine • 2 . Washyourskin andchangeclothesimmediately . 4 . Tohelpavoidbladecontact ora thrownobjectinjury , stay in 3 . Useonly anapprovedgasolinecontainer . operatorzonebehindhandlesand keepchildren , bystand - 4 . Neverfill containersinsidea vehicleor ona truck ortrailer ers , helpersand petsat least75feetfrom lawnedgerwhile bedwith a plastic liner • Alwaysplacecontainersonthe it is in operation . Stopmachineifanyoneentersarea • groundawayfromyour vehiclebeforefilling . 5 . Thoroughlyinspectthe areawherethe equipmentis to be 5 . Removegas - poweredequipmentfromthetruck or used . Removeallstones , sticks , wire , bones , toys andother trailerand refuelit onthe ground • Ifthis is notpossible , foreignobjectswhichcouldbetripped overor pickedup then refuelsuchequipmenton a trailerwitha portable andthrownbythe blade . Thrownobjectscancause serious container , ratherthan froma gasolinedispensernozzle . personalinjury • 6 . Keepthe nozzlein contactwith the rimof thefuel tankor 6 . Alwayswear safetyglassesor safetygogglesduringopera - containeropeningat alltimesuntil fueling is complete . Do tionandwhile performinganadjustmentor repairto protect notusea nozzlelock - opendevice • youreyes • Thrownobjectswhich ricochetcancauseserious 7 . Extinguishallcigarettes , cigars , pipesandothersources injuryto the eyes • of ignition • 7 . Wearsturdy , rough - soledwork shoesand close - fitting 8 . Neverfuel machineindoorsbecauseflammablevapors slacksandshirts . Shirtsand pantsthat coverthe arms and willaccumulateinthe area . legs andsteel - toedshoesare recommended • Neveroperate 9 . Neverremovegascap oraddfuel whileengineis hot or this machinein barefeet , sandals , slipperyor lightweight running • Allowengineto cool at leasttwo minutesbefore ( e . g . canvas ) shoes . refueling • 8 . Neverattemptto makeanyadjustmentswhilethe engine and follow the warnings 10 Neveroverf fue tank F tankto nomorethan _ Jznch • is running exceptwnere specmcallyrecommendedinthe and nstructons belowbottomof filler neckto providefor fuelexpansion , operator's'manua _ . L . _ . _ . . . . 11 . Replacegasolinecap andtightensecurely • i IH LHUI5m _ HU _ ! i and Onthe machin ÷ . . . . . , J 4
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9 . Toavoidpersonalinjuryor propertydamageuseextreme 2 . Beforecleaning , repairing , or inspecting , makecertainthe bladeandall movingparts havestopped . Disconnectthe care in handlinggasoline . Gasolineis extremelyflammable sparkplugwire andgroundagainsttheengineto prevent and thevaporsare explosive . Seriouspersonalinjurycan unintendedstarting . occur whengasolineis spilled onyourselforyour clothes 3 . Checkthe bladeandenginemountingboltsatfrequent which canignite . Washeryour skinand changeclothes intervalsfor propertightness . Also , visuallyinspectblade immediately . fordamage ( e . g . , bent , cracked , worn ) Replacebladewith 10 . Donotput handsor feet nearrotatingparts . Contactwith theoriginalequipmentmanufacture's ( O £ . M . ) bladeonly , the rotatingbladecan amputatehandsand feet . listedin thismanual . ' Use of partswhich donotmeetthe 11 . The bladecontrolhandleis a safety device . Neverbypass originalequipmentspecificationsmayleadto improper itsoperation . Doingso , makesthemachineunsafeand may performanceandcompromisesafety ! " causepersonal injury . 4 . Lawnedgerbladesaresharp andcancut . Wrapthe blade orweargloves , and useextracautionwhenservicingthem . 12 . Neveroperatewithoutblade guard , debris shieldandblade 5 . Keepallnuts , bolts , andscrewstight to besurethe equip - controlhandlein placeand working . ment is in safeworkingcondition . 13 . Neveroperatewith damagedsafetydevices . Failureto do 6 . Nevertamperwithsafetydevices . Checktheirproper so , can resultin personalinjury . operationregularly ' . 14 . Neverrun anengineindoorsor ina poorlyventilatedarea . 7 . Afterstrikinga foreignobject , stopthe engine , discon - Engineexhaustcontainscarbonmonoxide , an odorlessand nectthe spark plugwire andgroundagainsttheengine . deadlygas . Thoroughlyinspectthe lawnedgerfor anydamage . Repair 15 . Donotoperatemachinewhileunderthe influenceof alcohol thedamagebeforestartingandoperatingthe lawnedger . or drugs . 8 . Neverattempt to makea wheelorcutting height adjust - 16 . Mufflerandenginebecomehotandcancause a burn . Do mentwhilethe engineis running . nottouch . 9 . Manycomponentsonyour new edgercanwearwith 17 . Neveroperatethis machinewithoutgoodvisibility or light . continueduse . Forsafetyprotection , frequentlycheck Alwaysbesure of yourfootingand keepa firm holdonthe alledgercomponentsand replaceimmediatelywith handles . Walk , neverrun . originalequipmentmanufacturer's ( O . E . M . ) parts only , listedin this manual . " Useof parts whichdo notmeetthe 18 . Donotoperatethis machineif it hasbeen droppedor dam - originalequipmentspecificationsmayleadto improper aged . Returnmachineto your nearestauthorizedservicing performanceand compromisesafety ! " dealerfor examinationand repair . 10 . Donot changetheenginegovernorsettingor overspeed 19 . Donotoperatethis machinewitha damagedor excessively theengine . The governorcontrolsthemaximumsafe worncutting blade . operatingspeedof theengine . 20 . Neverattemptto clear materialfromthe bladeguardwhile 11 . Maintainor replacesafetylabels , as necessary . the engineis running . Shutthe engineoff , disconnectthe 12 . Observeproperdisposallawsand regulationsI . mproper spark plugwire andgroundagainsttheengineto prevent disposalof fluidsand materialscanharmtheenvironment . unintendedstarting . 21 . Donotoverloadmachinecapacityby attemptingto edge at toofast of a rate . 22 . Stayalert for unevensidewalks , terrain etc . Alwayspush uaubefore attemptingto slowly overroughsurfaces . Do notusethis machineon gravelsurfaces . 23 . Donotoperatemachinein rain orwet soilconditions . Alwaysoperatemachinefrombehindthe handlesand positionyourselfwhere the directline of sightto cutting resuUt in personaUinJury _ bladeis blockedby guards . 24 . Alwaysstopenginewhen edgingor trimmingis delayedor whentransportingmachinefrom onelocationto another . Neverleavea runningmachineunattended . Stopthe engine , disconnectspark plugwireand groundagainstthe engineto preventunintendedstarting . 25 . Only useparts andaccessoriesmadefor this machineby the manufacturer . Failureto doso , canresult in personal injury . 26 . If situationsoccurwhichare notcoveredinthis manual , use care andgood judgment . Telephone330 _ 220 - 4683 or 1 - 800 - 800 - 7310 for CustomerSupportandthe nameof your nearestdealer . Service 1 . Neverrun anengineindoorsor ina poorlyventilatedarea . Engineexhaustcontainscarbonmonoxide , anodorlessand deadlygas . 5
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Securing the Handle UpperHandle IMPORTANTT : his unitis shippedWITHOUTGASOLINE . \ Aftersettingupthe unit , serviceenginewithgasolineas instructedin the separateenginemanualpackedwithyour unit . Besure to serviceenginewiththe oilenclosedwith thisunit as instructedin theseparateenginemanual NOTE : Referenceto right orleft handside of the edgeris observedfromthe operatingposition . Positioning the Edger HandJes 1 . Removeand discardanypackagingcardboardthat maybepresentbetweenthe upperhandleandthe lowerhandle . 2 . Depressthe bladecontrolat the top of the upper WingKnob handleandpivotthe upperhandleupwarduntilit snapsinto place . RopeGuide 3 . Tightenthe handknobs , whichare locatedon boththe Figure 1 leftand rightsidesof the handle . SeeFigure2 . Attaching the Starter Rope HandKnobs UpperHandle 1 . Locatethe ropeguidefoundon the rightsideof the upperhandle . 2 . Loosen , butdo NOTremove , the wingknobwhich securesthe ropeguideto theupperhandle . See Figure1 . 3 . Standbehindthe unitand holdthe bladecontrol againstthe upperhandleandgentlypullthe starter ropeoutof theengine . WARNING : The edger MadeWiLL rotate when the starter rope is pulled . NOTE : The starterropewill notpullout of LowerHandle the engineunlessthe bladecontrol ( referto Figure1 ) is depressedagainstthe upperhandle . IM PORTANT : 1 . S @ the starterropethroughthe topof theropeguide . Figure 2 2 . Retightenthe wing knobwhichsecuresthe ropeguide to the upperhandle . 6
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Be familiar with all Model 550show here . controls and their Figure 3 proper operation , Know how to stop the WARNING ; Blade Depth Control Lever machine and disen - Be familiar with all controls and The bladedepthcontrolleveris locatedon the rightside gage them quickJy . theirproperoperation , Knowhow of the upperhandle . It is usedto controlthedepthof the to stopthe machine and disengage cut . Thefurtherforwardthe bladedepthcontrolleveris moved , the deeperintothesoil the edgerbladewill cut . them quicHy , SeeFigure3 . NOTE : Referto NOTE : Referto the EngineManualpackedwithyour edgerfora detaileddescriptionof allengine - related Bevel Adjustment Lever ( if so equipped ) the Engine Manual controlsandcomponents . packed withyour The beveladiustmentlever , if so equipped , is located Starter Rope / Recoil Starter on thefront , leftportionof the edger , behindthe edger edger for a detailed blade , It is usedto varythe angleof theedgerblade description of all en - The pullrope / recoilstarteris usedto startthe engine . betweenoneof threepositionsfor edging / trenchingor gine - related controls Primer bevelededging . SeeFigure3 . and components . The primeris usedto pumpgas into thecarburetorand Curb Height Adjustment Lever aidin startingthe engine . Useit to start a coldengine , # f so equipped ) butdo not use it to restarta warmengineaftera short The curbheightadiustmentlever , if so equipped , is shutdown . foundon the rearportionof the edger , Whenplacedin NOTE : Referto the EngineManualpackedwithyour an applicablenotch , it aids in stabilizingthe edgerwhile edgerfora detaileddescriptionof allengine - related IMPORTANT : edginggrassalonga curb . SeeFigure3 . controlsandcomponents . Becomefamilial with IMPORTANT : Becomefamiliarwithall thecontrols Blade Control all the controls before beforeoperatingtheedger . operatingthe edger . Locatedon the upperhandle , the bladecontrolmustbe depressedagainstthe upperhandlein orderto operate the unit . Releasingthe bladecontrolstopsthe engine andthe edgerblade . SeeFigure3 . 7
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The operationof anyedgercan result Edging inforeign objects beingthrown intothe Tobeginedging , proceedas follows : which can resultin severeeye damage . Alwayswearsafetyglasses 1 , Movethe unitover to theareato beedged , making or eyeshields . Werecommendwide surethatthe bft rearwheelis on a hardsurfaceand vision safetymaskfor over spectaclesor the bladeis overthe areato becut , SeeFigure4 , standardsafetyglasses . WARNING : Do not lower blade if blade is over concrete , asphalt , rocks or the like . The blade can strike the sup - porting surface , resulting in personal injuryor property damage . Adding Gasoline And Oil Servicethe enginewithgasolineandoil as instructed in the EngineManualpackedwithyour edger , Read instructionscarefully , WARNING : Neverfill fuel tank indoors , with engine running or until the engine has beenallowed to cool for at least two minutes after running . WARNING Starting The Engine Figure 4 NOTE : Referto the EngineManualpackedwithyour Do not lower blade 2 , Movethe bladedepthcontrolleverto the leftandplace edgerfora detaileddescriph'onofall engine = related if blade is over intothe nextlowernotch , Thenmakea passalongthe controlsandcomponents . concrete , asphalt , areato beedgedbeforeproceedingto the nextnotch , Tostart theedger'sengine , proceedas follows : rocks or the like . The Thefurtherforwardthe bladedepthcontrolleveris moved , the deeperor lowerthe bladewill cut intothe blade can strikethe 1 , Movethe bladedepth controlleverbackto the STARTpositionin the adiacent ( top ) notch , ground , Severalpassesmaybenecessaryto obtain supporting surface , the desireddepthof cut , Do not lowertheblademore 2 , Depressthe primerbulbthreetimes , pausingtwoto resulting in personal thanonedepthnotchat a timewithoutmakinga pass , threesecondsbetweeneachpush , In cold weather injury or property ( below50 ° F / 19 ° C ) , it maybenecessaryto depress 3 , For bestresults , proceedslowlyalongthe pathbeing damage . the primerbulbfouror fivetimes , edged , slowlymovingthe edgerbackandforththrough the cuttingarea , againmakingsureto keepthe left IMPORTANT : Usingthe primerto restarta warm Never fill fuel tank rearwheelonthe hardsurfaceandthe bladeinthe engineaftera shortshutdownis usuallynotnecessary , indoors , with engine Doingso mayresultina floodedengine , cuttingpath , closeto but not touchingthe edgeof the runningor until the hardsurface , 3 , Standingbehindthe unit , depressthebladecontrol engine has been 4 , Onceyou havereachedthe endof yourcutting path , andholdit againstthe upperhandlewithyourleft allowed to cool for raisethe bladecontrolleverbackinto the START hand , position , moveto the nextareato becut , andproceed at least two minutes WARNING : Thiscontrol mechanism againfromstep 1 , after running . is a safety device . Neverattempt to Stopping The Engine bypass its operation . This control mecha - 4 , With yourright hand , graspthe recoilstarterhandb Tostopthe edger'sengine , releasethe bladecontrol nism is a safety handle , andslowlypullthe ropeoutwarduntil enginereaches device . Never attempt the startof its compressioncycle ( theropewill pull to bypass its opera - NOTE : Seeyourenginemanua / packedwithyourunit for slightlyharderat thispoint ) , moredetailedinstructions . Lion , 5 , Afterslowlyallowingthe ropeto recoil , pullthe rope witha rapid , continuous , full arm stroke , Keepa firm griponstarter handlethroughoutthe entirestroke , 6 , Allowthe starterhandbto slowlyreturnto therope guide , NOTE : If the enginefailsto startafterthreepuffs , depresstheprimeran additionaltwotimesbefore pullingthestarterropeagain . 8
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Edging Along A Curb NOTE : Edgerfeaturesvaryby model . All edgermodels do NOTcomeequippedto edgealongacurb noris there a curb wheelkit availableto modifyyour edgerif it was not purchasedequippedto doso . Onmodelsso equipped , the right , rearwheelof the edgercan be loweredintooneof fivepositionsto ease the taskof edgingalonga curb , Toadiustto the heightof the curbwheel , proceedas follows : 1 , Lowerthe right , rearwheelby movingthe curb height adjustmentleverslightlyto the left , SeeFigure5 , Figure 5 2 , Pivotthe right , rearwheelintoanapplicablepositionin relationto the heightofthe curbto beedgedalong , 3 , Releasethe curb heightadiustmentleverto lockthe wheelin position , SeeFigure6 , 4 , Proceedbackto step1 underEdgingat the beginning of thispage , NOTE : Severalpassesmaybenecessaryto obtainthe desireddepthof cut . Do notIowerblademorethanone depthnotchat a time . Lowered Position ustment Lever Figure 6 9
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BevelAdjustment NOTES : NOTE : Edgerfeaturesvaryby mode / . A / / edgermodels doNOTcomeequippedwitha bevel adjustmentnor is therea beveladjustmentkit availableto modifyyour edgerif it wasnot purchasedequippedto do so . Theangleof the edgerbladecan beadiustedbyplacing the beveladiustmentin oneof threepositionsfor edging or bevelededging , SeeFigure7 , WARNING Rotating cutting blade may throw objects Figure 7 causing personaJ injury . Keeparea clear throw objects causing personal injury . of bystanders and do _ L ARNING : Rotating cutting blade may Keeparea clear of bystanders and do not operate without not operate without guards in place . guards in place . Beveling in orderto achievea bevellededge , setthe bevel adjustmentlever ( referto Figure7 ) inthe first ( left hand ) orthird ( righthand ) notchto placethe edgerbladein positionfor beveling , Seepositionsbelowin Figure8 , Left Hand Position Right Hand Position Beveted Edging Positions Figure 8 10
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wire and ground against the engine _ Flange Lock Nut _ lb ARNING : Dwconnect the spark plug before performing any adjustment , repairs or maintenance . Flywheel ' . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . < . . . - . - . _ . . ' . _ . . / . A . . ! . . . . . . . t . i . / . _ . . _ . . _ . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Lubrication Engine Refertothe EngineManualpackedwithyouredgerfora Flat Side detaileddescriptionof allengine = relatesdervicespecs , WheeW of Be , t Assemb , y _ VBSide Guar Lubricatethe wheelsandbearingsat leastoncea Figure 10 seasonwitha lightoil , Alsoif thewheelsareremovedfor any reason , lubricatethe surfaceof the axle boltandthe 2 , Withyourother hand , carefullyreachunderthe rearof innersurfaceof the wheelwithlightoil the unit andremovethe belt fromaroundthe engine flywheelpulley , Pivot Points 3 , Removethe spindlesheavesbelt guardbyremoving Lubricatethe pivotpointsonthe bladecontrolbail , blade the twoself4appingscrewswhichsecureit to the depthcontrollever , andif applicable , the bladeadius = t bladeplateassembly , mentlever , andcurb heightadiustmentleverwithlight oil 4 , Usetwowrenches ( onewrenchto preventthe hex at leastoncea season , bolt headfromspinningandthe otherto removethe flangenut ) to removethe edgerblade , Bearing Block Referto Figure11 , Lubricatethe bearingNeckonce a season , oras needed The edger blade by simplyapplyingoil at each endof thecoverplate , is sharp . Wear SeeFigure9 , Wather work gtoves to protect your hands when working around the edger blade Disconnect the spark plug wire and ground against the engine before performing any adjustment , repairs or mainte - Figure 11 nance . 5 , Removeanddiscardthe edgerbladebut retainthe Lubricate flangenut , Figure 9 6 , Installthe replacementedgerbladeandthe flangenut removedearlier , IMPORTANT : Usea torquewrenchto tightenthe flange Replacing the Edger Blade nutto between37footqbs , and50footqbs , WARNING : The edger blade issharp . 7 , Reinstallthe spindlebeltguardwiththe selftapping Wear leather work gloves to protect screwsremovedearlier , your hands when working around the 8 , Carefullyplacethe drivebelt backonto theengine edger blade . flywheelpulley , andretightentheflange locknuton WARNING : Disconnect the sparkplug the top of the frame , wire and ground against engine before IMPORTANT : Makecertainthatthe drivebelt is performing the following steps . seatedcorrectlyonthe bladespindleandthat it is riding 1 , Workingin frontof the edger , loosentheflange lock smoothlyonthe spindlesheavesandis notpinched nuton top of frame , allowingthe idlerpulleyassembly betweenthem , Repeatthefirst threestepsif the beltis to pivotslightlyout fromtheframe , SeeFigure10 , pinched , \ 11
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Replacina the Drive Belt 5 Workinfrgomthefronotftheedgepr , [ acethbee [ tonto j the spindlesheaves route _ tbackonto the two _ d [ er IMPORTANT : Toaid inreassemb [ y , notethe orientation . . . . . _ tk . . . . . . t _ , , , t _ t , h . . . . . . . _ _ h , , _ , of the drivebelton the twoidlerpulleysandthe engine _ [ [ _ ' y _ . . . . . . . . P . . . . . . . . . . . . . . . . _ . . . . . ' . . . . . . flywheelpulleypriorto performingthe followingsteps . IMPORTANT : Makecertainthat the " V " side of the belt Referto Figure10 . is seatedintothe top pulleyandthe fiatside ofthe beltis Theedgerdrivebelt is subjectto wearandshouldbe seatedintothe bottompulley . replacedif any signsof cracking , shreddingor rotting 6 . Reinstallthe spindlesheavesbelt guardwiththe self arepresent . To replacethe belt , proceedas follows : tappingscrewsremovedearlier . 1 . Workinginfrontof the edger , loosentheflange 7 . Makecertainthat thedrive beltis on the engine locknut ontop of frame , allowingthe idlerpulley flywheelpulleyandidlerpulleys , andretightenthe assemblyto pivotslightlyoutfromthe frame . See flangelocknuton the top of theframe . Figure10 . IMPORTANT : Makecertainthat thedrive beltis seated 2 . With yourotherhand , carefullyreachunderthe rearof the unitandremovethe beltfromaroundthe correctlyand thatit is ridingsmoothlyon the spindle engineflywheelpulley . sheavesandis not pinchedbetweenthem . Repeatthe 3 . Removethespindlesheavesbeltguardby removing firstthree stepsif the belt is pinched . the twoself = tappingscrewswhichsecureit to the WARNING : Neveroperate the edger bladeplateassembly . SeeFigure10 . without the spindle sheaves belt guard 4 . Carefullyremovethe belt fromoff of the pulleys , in place . againmakingsureto notethe orientationof the belt . Discardthe belt . WARNING Installthereplacemenbtelt ( PartNo . 754 _ 04032B ) itnhe sameconfigurationthattheoriginalbeltwasroutedas follows : Never operate the edger without the spindle sheaves belt 3 . Coatthe edgerbladewithchassisgreaseto prevent Off - Season Storage rustingandcorrosion . guard in place . Observethefollowingwhenpreparingthe edgerfor 4 . Storethe edgerin adry , clean area . Donot storenext long - termstorage : to anycorrosivematerials , suchas lawnfertilizer . 5 . Coatthe edger , especiallyany springsandbearings 1 . Cleanandlubricateunitthoroughlyas instructedon witha lightoil orsiliconespray . page11of this manual 2 . Referto the EngineManualpackedseparately IMPORTANT : Whenstoringanytypeof powerequipment withthe edgerfor enginemanufacturers'sstorage inan poorlyventilatedor metalstorageshed , careshould instructions . betakento rustproofthe equipment . 12
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Problem Possible Cause ( s ) Corrective Action Engine faiB to start Dirty aircleaner Referto the EngineManualpackedwithyour unit . Engineneedsto beprimed Pushprimerbulbtwo or threetimes . Fueltankempty Filltank withclean , fresh gasoline . Stalefuelin gasolinetank Draingasolineandrefilltankwithclean , fresh gasoline . Sparkplugwire disconnected . Connectthe sparkplugwire to the sparkplug . Sparkplugfouled Clean , adjustgapor replacesparkplug . Engineflooded Referto the EngineManualpackedwithyour unit . Sparkplugwire loose Connect andtightensparkplugwire . Engine runs erratic Stalefuelin gasolinetank Draingasoline & refilltankwith clean , fresh gasoline . Ventin gascapplugged Clearventof any debris . Drainfueltank . Refillwith freshfuel . Wateror dirt in fuelsystem Dirty aircleaner Referto the EngineManualpackedwith yourunit . Carburetoroutof adjustment Referto the EngineManualpackedwith yourunit . m m _ For parts and / or Engine Overheats Engineoil levellow Fillcrankcasewith properoil . accessories please Air flow restricted Cleantheareaaroundthe engine'scoolingfins . call 1 - 330 - 220 - 4683 , Dirty airfilter Replacetheengine'sair filter . or 1 - 800 - 800 - 7310 Carburetornotadjustedproperly Referto the EngineManualpackedwith yourunit . www . mtdproducts . com Excessive Vibration Edgerbladebent ordamaged Replaceedgerblade . Bladespindlebent ordamaged Contactan authorizedMTDservicedealer . Drivebelt Slips Belt wornor stretched Replacedrivebelt . 13
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Model520 TfioStarBlade B Ust . PartLm Spindle Assembmy Model 550 & 520 PLEASE NOTE : Edger features and compo = nents vary by model . NOT all parts listed u here and pictured on this page are standard equipment . For parts and / or accessories please V = BELTSarespeciallydesignedto engageanddisen = carl 1 - 330 - 220 = 4683 , gagesafely , Asubstitute ( non = OEM ) V = Beltcan or 1 = 800 - 800 - F310 bedangerousby not disengagingcompletely , www . mtdproducts . com 1 687 = 02126 BladePlateAssembly 15 747 = 04110 BladeAdiustmentRod 2 710 = 04389 HexScrew , 5 / 16 = 18 16 750 = 04105 Spacer , , 63 x 1,12x 1,06 3 710 = 0599 Self = tappingScrew , 1 / 4 = 20 17 750 = 0547 Spacer , , 64 x , 88x , 50 4 710 = 1143A HexScrew , 5 / 8 = 18 18 754 = 04032B Belt 5 712 = 0417A FlangeNut , 5 / 8 = 18 19 756 = 0449 Sheave 6 714 = 3010 CotterPin3 / 32 x , 625 20 781 = 0080 Blade 7 718 = 04012 BearingCup 21 781 = 0427 BeltGuard 8 731 = 04207 BearingBlock 22 787 = 01081A CoverPlate 9 731 = 05064 BladeGuard 23 781 = 0748 Tri = starBlade ( Opt . Access . ) 10 732 = 0188A DoubleTorsionSpring 24 711 = 1017 ClevisPin 11 732 = 04169 CompressionSpring 25 714 = 0104 CotterPin 12 736 = 04088 FlatWasher , 635x1,24x , 181 26 736 = 0342 FlatWasher , , 260x , 72 13 738 = 0706B ShoulderScrew 27 787 = 01075A CoverPlate 14 741 = 0524 Bearing , , 625ID x 1,57OD 14
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Hand [ elFrame / Wheel Assembly Model 550 & 520 PLEASE NOTE : Edger features and compo - nents vary by mode [ . NOT a [ [ parts listed here and pictured on , 1 710 - 0191 Screw3 / 8 - 24 24 749 - 04184 LowerHandle this page are standard } 2 710 _ 0411 Screw3 / 8q6 25 781 _ 0741A DepthindexBracket equipment , 3 710 - 0654A Screw , 3 / 8q6 26 781 - 0742 DepthindexLever 4 712 _ 04065 Range LockNut , 3 / 8q6 27 687 _ 02022 Curb HeightAdiustmentLever For parts and / or 5 731 _ 05063 DebrisGuard 28 687 _ 02125 Curb HeightAdiusterPlate accessories please call 1 - 330.220 - 4683 , 6 736 - 0452 BellWasher , , 396 x 1,140 29 710 - 0759 HexScrew5 / 16x 18 or 1 - 800 - 800 - 73 ! 0 7 750 _ 04142 PulleyMountSpacer 30 711 _ 04361 Axle Shaft , 50x6,65 www . mtdproducts . com 8 756 _ 04148 Flat [ diet Pulley , 2,50D 31 711 _ 04392A FrameSpacer , 50x9,25 9 756q150A CombinationFlywheeIPulley 32 712 - 04065 RangeNut 3 / 8q6 10 787 - 01229 Frame 33 726 - 0299 PushCap 1 / 2 " rod 11 710 - 0726 HexScrew , 5 / 16q2 34 732 - 04045 TorsionSpring 12 710q174 CarriageBolt , 5 / 16q8 35 734q987 Wheel8xl , 8 13 710q205 RopeGuide ( EyeBofi ) 36 734q988 WheelTxl , 8 14 710 - 3180 HexScrew , 5 / 16q8 37 736 - 0234 FlatWasher , , 385x 1,5x , 075 15 712 - 04063 LockRangeNut , 5 / 16q8 38 738 - 04149 ShoulderScrew , 3 / 8q6 16 720 - 0142 Grip 39 738 - 0929 ShoulderScrew , 3 / 8q6 17 720 - 0279 Wing Nut 40 750 - 04129 Spacer 18 720 - 04052 HandKnob 41 787 - 01239 DualWheeIBracket 19 732 - 0369 CompressionSpring 42 711 - 04362 Spacer 20 746 _ 04035 ControlCaNe ( Briggs & Stratton ) 43 736 _ 0232 WaveWasher 21 746 - 04036 WheelAdiustmentCaNe 44 750 - 04427 Spacer , , 525x , 775x , 1125 22 747 - 0976A BladeControl 45 750 - 04428 Spacer , , 525x , 775x , 3125 23 749 - 04183 UpperHandle 46 787 - 01240 WheeIBracket 15
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MANUFACTURER'S LIMITED WARRANTY FOR The limitedwarrantyset forthbelowis givenby MTDLLCwithrespectto e , MTDdoes notextendany warrantyfor productssoldor exported newmerchandisepurchasedandusedin the UnitedStates , its posses _ outsideof the UnitedStates , itspossessionsandterritories , except sionsandterritories . thosesoldthroughMTD'sauthorizedchannelsof exportdistribution , " MTD " warrantsthisproductagainstdefectsin materialandworkmanship f , Replacementpartsthatare notgenuineMTDparts , for a periodof two ( 2 ) yearscommencingonthe dateof originalpurchase g , Transportationchargesandservicecalls , andwill , at its option , repairor replace , free of charge , anypart foundto bedefectivein materialsor workmanshipT . his limitedwarrantyshallonly No implied warranty , including any implied warranty of merchant ° applyif this producthas beenoperatedandmaintainedinaccordance ability of fitness for a particular purpose , applies after the applicable withthe Operator'sManualfurnishedwiththe product , and hasnot been period of express written warranty above as to the parts as identi - subiectto misuse , abuse , commercialuse , neglect , accident , improper fied . No other express warranty , whether written or oral , except as maintenance , alteration , vandalism , theft , fire , water , ordamagebecause mentioned above , given by any person or entity , includinga dealer of otherperilor naturaldisaster . Damageresultingfromthe installationor or retailer , with respect to any product , shall bind MTD . During the useof any part , accessoryor attachmentnot approvedby MTDfor use period of the warranty , the exclusive remedy is repair or replacement withthe product ( s ) coveredbythis manualwill voidyourwarrantyas to of the product as set forth above . any resultingdamage . The provisions as set forth in this warranty provide the sole and Normalwearpartsarewarrantedto befree fromdefectsinmaterialand exclusive remedyarising from the sale . MTDshall not be liable workmanshipfora periodof thirty ( 30 ) daysfromthedate of purchase . for incidental or consequential loss or damage including , without Normalwearpartsinclude , butare notlimitedto itemssuchas : batteries , limitation , expenses incurred for substitute or replacement lawn care belts , blades , bladeadapters , grassbags , riderdeckwheels , seats , snow services or for rental expenses to temporarily replace a warranted throwerskidshoes , shaveplates , augerspiralrubberandtires . product . Somestatesdo not allowtheexclusionor limitationof incidentalor NOW TO OBTAmNSERVICE : Warranty service is available , WITH PROOFOF PURCHASE , through your local authorizedservice consequentialdamages , or limitationson howlonganimpliedwarranty dealer . To locate the dealer in your area , check your Yellow Pages , or lasts , so the aboveexclusionsor limitationsmaynotapplyto you . contact MTD LLC at RO . Box 361131 , Cleveland , Ohio 44136 - 0019 , or In noeventshall recoveryof any kind begreaterthanthe amountof the call 1 - 800 - 800 - 7310or 1 - 330 - 220 - 4683 or log on to our Web site at purchasepriceof the productsold . Alteration of safety features of the www . mtdproducts . com . product shall void this warranty . Youassumethe riskandliabilityfor This limitedwarrantydoesnot providecoverageinthe followingcases : loss , damage , or iniuryto youand yourpropertyand / or to othersandtheir a . Theengineorcomponentpartsthereof . Theseitemsmaycarrya propertyarisingout of the misuseor inabilityto use the product . separatemanufacturer'swarranty . Referto applbablemanufacturer's This limitedwarrantyshall notextendto anyoneotherthanthe original warrantyfor termsandconditions . purchaseror to the personfor whomit waspurchasedas a gift . NOWSTATELAW RELATESTO THISWARRANTY : ThislimitedwaF b . Logsplitterpumps , valves , andcylindershaveaseparateoneyear rantygivesyouspecificlegalrights , andyou mayabe haveother rights warranty . whichvaryfromstateto state , c . Routinemaintenanceitemssuchas lubricants , filters , blade IMPORTANT : OwnermustpresentOriginalProofof Purchaseto obtain sharpening , tune _ upsb , rakeadiustments , clutchadiustments , deck warrantycoverage , adiustments , andnormaldeteriorationof the exteriorfinishdueto use orexposure , d , Serviceeompbtedbysomeoneotherthanan authorizedservice dealer , MTD LLC , P . O . BOX 381131 CLEVELAND , OHIO 44138 - 0019 ; Phone : 1 - 800 - 800 - 7310 , 1 - 330 - 220 - 4883
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